Has competition in the Japanese banking sector improved? |
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| Institution: | 1. Faculty of Economics, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan;2. Graduate School of Economics, Osaka University, 1-7 Machikaneyama, Toyonaka 560-0043, Japan;1. Senior Financial Research Economist, Center for Latin American Monetary Studies—CEMLA, Durango 54, Col. Roma, Delegación Cuauhtemoc, México D.F. 06700, Mexico;2. Department of Economics, Faculty of Business, Dokuz Eylul University, 35160 Buca, Izmir, Turkey;1. College of Business Administration, Ritsumeikan University, Japan;2. Kushiro Public University of Economics, Japan;1. Faculty of Commerce, Chuo University, 742-1 Higashinakano, Hachioji, Tokyo 192-0393, Japan;2. Graduate School of Business Administration, Kobe University, 2-1 Rokkodai, Nada, Kobe 657-8510, Japan;3. Kelley School of Business, Indiana University, East 10th Street, Bloomington, 47405, IN, USA;4. Institute of Economic Research, Hitotsubashi University, 2-1 Naka, Kunitachi, Tokyo 186-8603, Japan |
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| Abstract: | This paper investigates whether competition in the Japanese banking sector has improved in the last quarter of the 20th century. By estimating the first order condition of profit maximization, together with the cost function and the inverse demand function, we found that competition had improved, especially in the 1970s and in the first half of the 1980s. The results fail to reject a Cournot oligopoly for city banks for most of the period, while they do reject it for regional banks for the overall period. This suggests that competition among city banks was stronger than that among regional banks. |
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